I think your instructible is a great start, but you are missing a final step, which is to cut out the angled blades of the propeller. As it stands now the geometry of your cut-out would not push air in a specific direction. It should be possible to remove material between the cusps to leave angled blades. Then based on the rotation of the motor you would need to orient the propeller to either push air to the front, like a fan or pull air to the back like a plane. This being said, the idea of using a soda bottle to make a propeller is a great hack. I'm sure it will come in handy one day.

Newsletter

Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!